ZYA FLAT
PYROLYTIC GRAPHITE MONOCHROMATOR CRYSTAL 16MM X 20MM X 2MM - FROM BLAKE INDUSTRIES X-RAY LAB - 1970'S - Highly oriented pyrolytic graphite (HOPG) is a synthetic graphite that is pure and ordered
SLOWCHEETAH68BJ
PYROLYTIC GRAPHITE MONOCHROMATOR CRYSTAL 16MM X 20MM X 2MM - FROM BLAKE INDUSTRIES X-RAY LAB - 1970'S - Highly oriented pyrolytic graphite (HOPG) is a synthetic graphite that is pure and ordered